Di Felice and Forster indicate that Zinkl's win over Englisch was by forfeit. Feenstra Kuiper, Gaige and the Berlin Schachverband website show it as a genuine win, not a forfeit. Harding says that Englisch withdrew after 11 rounds, which is consistent with Di Felice and Forster if his defaulted win against von Bardeleben is counted as a round. Forster also claims that the wins by Schiffers over Alapin and Suchting over Albin were actually played, whereas Feenstra Kuiper, Gaige and Di Felice show them as default wins. I have used Forster's version. La Grande Storia degli Scacchi lists official results without indicating which wins were by forfeit, but notes that von Bardeleben withdrew after playing only Metger, as is also shown by Forster. Harding and Forster say that Albin defaulted three rounds, but Gaige and Di Felice indicate that he defaulted four. Feenstra Kuiper (p.210) says that Albin defaulted 2, but in the crosstable (p.44) shows him as defaulting four. The Berlin Schachverband website gives start date 13 Sept. 1897. Forster, Gaige, Di Felice and Feenstra Kuiper give start date 12 Sept. 1897. Feenstra Kuiper and the Berlin Scachverband website give end date 4 Oct. 1897. Forster, Gaige and Di Felice give end date 5 Oct. 1897.